Device and method for protecting optical means from contaminated

Details Device and method for protecting optical means from contaminated Device and method for protecting optical means from contaminated

1984-11-02

1987-04-14

Shaw, Clifford C.

Electric heating

Metal heating

Weld rod composition

219136, 350584, B23K 932

Patent

active

046581138

ABSTRACT:
A device and method for protecting optical means from contaminated gases, in which a substantially laminar flow of clean gas is passed over the surface of the optical means to be protected that is exposed to the contaminated gases.

REFERENCES:
patent: 2945943 (1960-07-01), Meyer
patent: 4240691 (1980-12-01), Holmqvist et al.
patent: 4367388 (1983-01-01), Ishihara et al.
patent: 4450339 (1984-05-01), Corby, Jr.
patent: 4491715 (1985-01-01), Voronin et al.

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